package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.MessageConstant;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.CategoryDTO;
import com.sky.dto.CategoryPageQueryDTO;
import com.sky.entity.Category;
import com.sky.entity.Dish;
import com.sky.entity.Setmeal;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.mapper.CategroyMapper;
import com.sky.mapper.DishMapper;
import com.sky.mapper.SetmealMapper;
import com.sky.result.PageResult;
import com.sky.result.Result;
import com.sky.service.CategoryService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.time.LocalDateTime;
import java.util.List;

@SuppressWarnings("ALL")
@Service
@Slf4j
public class CategroyServiceImpl implements CategoryService {

    @Autowired
    private CategroyMapper categroyMapper;

    @Autowired
    private DishMapper dishMapper;

    @Autowired
    private SetmealMapper setmealMapper;

    /**
     * 新增分类
     * @param categoryDTO
     */
    @Override
    public void save(CategoryDTO categoryDTO) {
        Category category = new Category();
        BeanUtils.copyProperties(categoryDTO, category);
        category.setStatus(StatusConstant.DISABLE);
        //category.setCreateTime(LocalDateTime.now());
        //category.setUpdateTime(LocalDateTime.now());
        //category.setCreateUser(BaseContext.getCurrentId());
        //category.setUpdateUser(BaseContext.getCurrentId());
        log.info("新增分类，分类数据category:{}", category);
        categroyMapper.save(category);
    }

    /**
     * 分页查询
     * @param categoryPageQueryDTO
     * @return
     */
    @Override
    public PageResult page(CategoryPageQueryDTO categoryPageQueryDTO) {
        PageHelper.startPage(categoryPageQueryDTO.getPage(), categoryPageQueryDTO.getPageSize());
        Page<Category> categoryPage = categroyMapper.page(categoryPageQueryDTO);

        return new PageResult(categoryPage.getTotal(), categoryPage.getResult());
    }

    /**
     * 根据类型查询分类
     * @param type
     * @return
     */
    @Override
    public List<Category> list(Integer type) {
        return categroyMapper.list(type);
    }

    /**
     * 启用禁用分类
     * @param status
     * @param id
     */
    @Override
    public void startOrStop(Integer status, Long id) {
        Category category = Category.builder()
                .id(id)
                .status(status)
                //.updateTime(LocalDateTime.now())
                //.updateUser(BaseContext.getCurrentId())
                .build();
        categroyMapper.update(category);
    }

    /**
     * 修改分类
     * @param categoryDTO
     */
    @Override
    public void update(CategoryDTO categoryDTO) {
        Category category = new Category();
        BeanUtils.copyProperties(categoryDTO, category);
        //category.setUpdateTime(LocalDateTime.now());
        //category.setUpdateUser(BaseContext.getCurrentId());
        log.info("修改分类，分类数据category:{}", category);
        categroyMapper.update(category);
    }

    /**
     * 根据id删除分类
     * @param id
     */
    @Override
    public void deleteById(Long id) {
        //根据id查询菜品
        List<Dish> dishes = dishMapper.findByCategoryId(id);
        log.info("根据id查询到的菜品：{}", dishes);
        if (dishes.size() > 0) {
            throw new DeletionNotAllowedException(MessageConstant.CATEGORY_BE_RELATED_BY_DISH);
        }
        //根据id查询套餐
        List<Setmeal> setmeals = setmealMapper.findByCategoryId(id);
        if (setmeals.size() > 0){
            throw new DeletionNotAllowedException(MessageConstant.CATEGORY_BE_RELATED_BY_SETMEAL);
        }

        //删除分类
        categroyMapper.deleteById(id);
    }
}
